Starke, J.G., author
Butterworth, 1977
Buku Teks
Klabbers, Jan, author
Cambridge University Press, 2009
Buku Teks
Collins, David, author
Cambridge University Press, 2017
Buku Teks
Klabbers, Jan, author
Cambridge University Press, 2002
Buku Teks
Kennedy, Charles H., author
Artech House, 1996
Buku Teks